On June 18, 2026, I had the privilege of speaking before the members of the Philippine Real Estate Service Practitioners, Inc. (PhilRES) – Mandaue City Chapter during its 6th General Membership Meeting held at Mandani Bay, Mandaue City. My presentation focused on a subject that has occupied much of my professional work in recent years: Evidence-Based Valuation (EBV) for Litigation, Expropriation, and Just Compensation.
For decades, real estate valuation has relied heavily on the Sales Comparison Approach. Comparable sales remain an important source of market evidence and continue to be one of the most widely accepted methods of determining value. However, in many assignments—particularly expropriation cases, litigation matters, infrastructure projects, and complex property disputes—the question often arises: Is market evidence alone sufficient to explain value?
The traditional appraisal process frequently emphasizes numerical adjustments derived from comparable transactions. While mathematically sound, such an approach may not fully capture the broader factors that influence value. Infrastructure investments, zoning regulations, land use policies, economic growth, scarcity, accessibility, environmental conditions, and development potential all contribute to the creation of value long before they are reflected in actual market transactions.
This observation led to the development of a framework I refer to as Evidence-Based Valuation (EBV).
The central premise of EBV is straightforward: value conclusions should not rely solely on comparable sales but should be supported by the reconciliation of multiple forms of evidence. These include:
Property Evidence – the physical characteristics of the property such as location, area, shape, topography, accessibility, improvements, and development potential.
Planning Evidence – land use plans, zoning classifications, infrastructure projects, government policies, and regulatory controls that influence future utility and development.
Economic Evidence – demand and supply conditions, growth trends, scarcity, investment activity, income potential, and broader economic drivers.
These forms of evidence are not independent of one another. Rather, they interact to influence the highest and best use of a property, which ultimately forms the basis of value.
The concept is equally relevant in both ordinary valuation assignments and special-purpose engagements. Evidence-Based Valuation strengthens the foundation of value conclusions by integrating multiple forms of evidence beyond comparable sales alone. Even in ordinary market valuations, appraisers are expected to provide conclusions that are not only supported by comparable sales but also grounded in a thorough understanding of the property’s characteristics, planning context, and economic environment. Courts are often asked to determine compensation that is fair not only to the government but also to the property owner. In such situations, the challenge is not merely selecting a comparable sale but reconciling all available evidence to arrive at a value conclusion that is credible, transparent, and defensible.
Evidence-Based Valuation does not seek to replace established valuation approaches. Instead, it seeks to strengthen them by expanding the evidentiary foundation upon which value conclusions are formed. Comparable sales remain important, but they should be viewed as one component of a broader evidentiary framework rather than the sole determinant of value.
As valuation professionals, we are increasingly called upon to explain not only what a property is worth, but also why it is worth that amount. This requires a deeper examination of the factors that create, sustain, and influence value.
The EBV framework remains a continuing work in progress. Future developments will explore its application to litigation valuation, water rights valuation, infrastructure projects, feasibility studies, market analysis, and just compensation determinations. The objective is not to create complexity for its own sake, but to improve transparency, strengthen professional judgment, and provide decision-makers with more defensible valuation conclusions.
Ultimately, valuation is not merely a mathematical exercise. It is the process of evaluating evidence, reconciling competing perspectives, and arriving at a reasoned conclusion. In that sense, evidence is not an alternative to valuation—it is the foundation upon which valuation rests.
By Augusto B. Agosto, JD, EnP, Economist, Consultant
When most people think of property valuation, they picture land, buildings, machinery, and infrastructure—tangible assets that can be easily inspected, measured, and compared in the marketplace. For water-dependent enterprises, however, a more fundamental question often arises: What is the value of the resource that makes the entire enterprise possible?
A water treatment plant without water has little utility; pipelines without water cannot generate revenue; and reservoirs without water are merely empty storage facilities. Yet, traditional valuation approaches often focus heavily on physical assets while giving limited attention to the underlying resource and the legal rights that govern access to it.
Recent professional engagements involving bulk water supply systems, utility infrastructure, and water-related enterprises prompted me to revisit a question that sits precisely at the intersection of law, economics, environmental planning, and valuation: Can the value of a water enterprise be fully explained by land and physical improvements alone? The answer is considerably more complex than conventional appraisal practice suggests.
Who Owns the Water?
The starting point of any discussion on water rights in the Philippines is the Regalian Doctrine. Under Article XII, Section 2 of the Constitution, all natural resources—including waters—belong to the State. The Water Code of the Philippines (Presidential Decree No. 1067) further reinforces this by declaring that private entities may acquire only the right to appropriate and utilize water, subject to strict state regulation.
This distinction is critical for valuation professionals: private entities generally do not own the water itself. Instead, they acquire the legal authority to access, extract, treat, distribute, and utilize water for beneficial purposes. While a water permit is merely an administrative authorization from a legal perspective, from an economic perspective, that authorization represents a monumental source of value.
Water Rights as Economic Assets
Economics teaches us that value arises from scarcity. Although the Philippines is traditionally viewed as an island nation rich in water resources, many regions face acute water stress driven by population growth, rapid urbanization, watershed degradation, groundwater depletion, and climate-induced seasonal variability. As access to reliable water becomes premium, the economic significance of water rights increases proportionally.
Water rights act as economic catalysts by providing:
Access to a Scarce Resource: Guaranteed entry into a restricted natural market.
Security of Supply & Legal Certainty: Risk mitigation against operational disruptions and litigation.
Priority of Use & Investment Opportunities: The baseline confidence required to deploy heavy capital for infrastructure development.
In effect, water rights serve as the operational bridge that converts unpriced natural resources into productive, revenue-generating economic assets.
Lessons from Practice: Beyond Tangible Assets
Several recent valuation assignments involving watershed-based bulk water supply systems and utility infrastructure projects forced a departure from standard real estate appraisal. These engagements required an evaluation that looked beyond physical infrastructure to assess raw water sources, regulatory authorizations, off-take contractual arrangements, and long-term hydrological sustainability.
One particular assignment involving a watershed-based bulk water supply system raised several non-traditional questions:
What precise portion of enterprise value is truly attributable to land versus physical improvements?
How should the raw, productive capacity of the surrounding watershed be quantified?
What is the isolated economic value of the right to abstract and distribute water?
How does the long-term reliability of the water source impact overall enterprise risk and value?
To what extent do administrative permits and contractual off-take agreements contribute to the ongoing economic viability of the operation?
Answering these questions required moving past conventional property appraisal and venturing into resource economics, institutional rights, environmental planning, and natural capital accounting. The valuation ultimately demonstrated that the economic performance of the enterprise could not be explained solely by its tangible assets. A massive portion of its utility and income-generating capacity was inherently tied to the underlying water resource and the institutional frameworks safeguarding access to it.
Two Paths to Water Production
Observation of water enterprises in Cebu reveals an interesting operational dichotomy. Different enterprises produce marketable water through completely different asset profiles:
Production Typology
Resource Reliance
Primary Value Driver
Natural Capital-Dependent
Watersheds, springs, and deep groundwater systems.
High reliance on natural replenishment and ecological health.
Technology-Dependent
Desalination plants and advanced treatment systems converting seawater or brackish water.
High reliance on produced capital, energy inputs, and technological investments.
While both typologies generate revenue by delivering the same end product, their underlying asset structures differ fundamentally. One depends heavily on natural ecosystems; the other depends on engineered physical infrastructure. Yet, both share the same economic reality: without access to the baseline water resource (whether raw fresh water or raw seawater), neither infrastructure nor technology can generate revenue.
Natural Capital and Water Resources
The emerging field of natural capital accounting provides a precise framework for modernizing valuation practice. Natural capital refers to natural assets capable of generating flow-of-resource economic benefits. In this context, it encompasses:
Watersheds, aquifers, and natural springs.
Rivers, recharge areas, and critical forest ecosystems that regulate hydrological cycles.
Without healthy watersheds and functioning hydrological systems, physical water supply infrastructure loses its utility. Consequently, the comprehensive valuation of water enterprises demands that we look upstream at the sustainability and ecological health of the resource provider.
Beyond Valuation: Understanding How Water Creates Economic Value
The appraisal of water-dependent enterprises often begins as a valuation exercise. However, the analysis quickly extends beyond traditional questions of market value and into a broader examination of how value is created.
Water enterprises derive their economic significance not merely from land, infrastructure, or equipment, but from the interaction of natural resources, institutions, and markets. Watersheds generate water resources. Legal and regulatory systems allocate access through water rights and permits. Infrastructure transforms the resource into a usable product. Markets create demand. Together, these elements produce economic value.
Viewed from this perspective, water rights valuation is not simply an appraisal problem. It is fundamentally an economic inquiry into how natural capital is transformed into productive capital through institutional arrangements and investment.
The valuation question therefore becomes a gateway to a broader understanding of resource economics, natural capital, and economic development.
Recent developments—including the enactment of the Philippine Ecosystem and Natural Capital Accounting System (PENCAS), the Philippine Statistics Authority’s Water Accounts, and ongoing national water resource assessments—reflect a growing recognition that natural resources are not merely environmental assets but fundamental contributors to economic development and national wealth.
These initiatives have significantly advanced the measurement of water resources, ecosystem services, and natural capital. However, an important gap remains. Much of the existing literature focuses on water availability, water use, allocation, pricing, and conservation. Far less attention has been devoted to understanding how water resources create economic value and how institutional arrangements governing access to those resources influence investment, enterprise development, and wealth creation.
In particular, limited research has examined the role of water rights as institutional mechanisms that transform water resources into productive economic assets. The interaction between natural capital, legal entitlements, infrastructure investment, and economic production remains largely unexplored in the Philippine context. Understanding this relationship is increasingly important as water scarcity, climate risks, and competing resource demands place greater emphasis on the economic significance of water resources.
These questions form the foundation of the author’s ongoing research, which seeks to examine how scarcity, institutions, and water rights interact to create economic value within water-dependent enterprises and, more broadly, within the Philippine economy.
Conclusion
The discussion on water rights ultimately leads to a broader question than valuation itself. While appraisal seeks to measure value, economics seeks to understand how value is created. In the case of water-dependent enterprises, the answer extends beyond land, buildings, treatment facilities, and infrastructure.
The experience of examining bulk water systems suggests that economic value originates from the interaction of natural capital, institutions, and investment. Watersheds, aquifers, springs, and other water resources provide the physical foundation. The State, through the Regalian Doctrine and the Water Code, establishes the institutional framework governing access and allocation. Water rights and permits create certainty, enabling investment in infrastructure, treatment systems, and distribution networks that transform natural resources into economic output.
Viewed from this perspective, water rights are more than regulatory instruments. They serve as institutional mechanisms that connect natural capital to economic production. Understanding their role requires moving beyond traditional discussions of water use and toward a deeper examination of how water resources contribute to enterprise value, regional development, and national wealth.
Recent initiatives such as PENCAS, the PSA Water Accounts, and national water resource assessments signal a growing recognition of the economic importance of natural assets. Yet important questions remain. How do watersheds create economic value? How do institutions influence the allocation of scarce water resources? How do water rights support investment, productivity, and long-term development? These questions remain largely unexplored within Philippine literature and present opportunities for future research.
The inquiry that began as a valuation problem has therefore evolved into a broader economic question: how does a water resource become economic value? Exploring that question may not only improve valuation practice but also contribute to a deeper understanding of water governance, natural capital, and sustainable development in the Philippines. As water scarcity and climate-related challenges become increasingly significant, the ability to understand and account for the value created by water resources may prove essential to both economic policy and resource management in the decades ahead.
Cebu City has undergone an undeniable spatial and economic transformation over the past two decades. From the gleaming corporate towers of Cebu Business Park and IT Park to the booming residential subdivisions in Guadalupe and the expanding luxury hillsides of Busay, our metropolitan footprint has expanded at a breathtaking pace.
But behind this economic success story lies a frozen fiscal reality: our local tax assessment schedules haven’t been updated since 2003.
Now, under the mandatory directive of Republic Act No. 12001, otherwise known as the Real Property Valuation and Assessment Reform Act (RPVARA), Cebu City is preparing to unleash one of the most sweeping real property tax recalibrations in its contemporary history.
As an appraiser, environmental planner, and economist, I know firsthand that updating these ancient schedules is a statutory necessity to wipe out passive land speculation. But the sheer velocity and underlying philosophy of Cebu City’s proposed Schedule of Market Values (SMV) and Schedule of Base Unit Construction Cost (SBUCC) should make every property owner stop and look at the fine print.
Here is why the current draft framework is setting up an explosive collision between aggressive market-driven valuation and your statutory rights as a taxpayer.
1. The Core Legal Battle: Market Appraisal vs. “Actual Use” Taxation
The ultimate friction point in the city’s new plan is a fundamental misinterpretation of how RPVARA interacts with the long-standing “Actual Use” Doctrine codified under Section 217 of the Local Government Code of 1991.
The law states with absolute clarity:
“Real property shall be classified, valued and assessed on the basis of its actual use regardless of where located, whoever owns it, and whoever uses it.”
For decades, this rule has protected long-time citizens from being taxed out of their own neighborhoods. It dictates that you must be taxed on how you are currently using your land, not on what your land could be worth if you knocked it down and built a commercial shopping mall.
While RPVARA introduces international appraisal standards to calculate true, prevailing market values, it did not repeal Section 217 of the Local Government Code. The city is legally bound to a clear, harmonious tax formula:
$$\text{Assessed Value} = \text{Prevailing Market Value} \times \text{Assessment Level based on Actual Use}$$
Unfortunately, the proposed SMV drafts effectively look past this formula, shifting the assessment framework away from actual-use taxation toward speculative, redevelopment-based valuation.
2. The Guadalupe Architecture: Slicing Up Streets into Hyper-Granular Tax Traps
Nowhere is this shift more evident than in the raw data for Barangay Guadalupe. By moving away from a flat-rate model, the City Assessor has introduced an aggressive spatial architecture that uses rigid distance thresholds to maximize tax extraction.
Instead of an entire street sharing a uniform baseline, the new schedule implements a mathematical proximity-distance rule: properties on secondary interior roads are slammed with Commercial C-7 rates (Php30,000/sqm) if they fall within a strict 120-to-160-meter radius of a major transit junction. Cross that invisible line by a single meter, and the value drops to residential rates (PhP25,000/sqm).
[PRIMARY URBAN CORRIDOR]
│
├─► WITHIN 120–160 METERS ──► Classified as C-7 Commercial (₱30,000/sqm)
│
└─► BEYOND 120–160 METERS ───► Drops to R-2 / RS-4 Residential (₱25,000–₱20,000/sqm)
This creates an alarming scenario. If you own an ancestral family home that has been strictly residential for half a century, but your front door happens to fall inside that high-intensity 140-meter commercial box, your baseline land value automatically balloons by hundreds of percent. The city is essentially taxing your property based on its speculative development capacity and “Highest and Best Use” potential—running directly counter to actual-use statutory protection.
3. The Upland Speculative Paradox: Triggering Environmental Chaos
In our fragile upland districts, such as Barangay Busay and Barangay Babag, the proposed SMV spikes pose a serious policy contradiction that threatens our metropolitan climate resilience.
Historically, these areas have served as critical protected watersheds and ecological reserves. The city’s draft introduces staggering valuation jumps: a 900% spike along the Transcentral Highway and up to a 1,025% surge (reaching PhP45,000/sqm) in the premium hillside enclaves of Busay.
Here lies the paradox:
Keeping values artificially low allows passive land speculators to buy up vast tracks of environmental land for cheap and sit on them at zero cost, waiting to flip them to high-density developers.
However, spiking values by thousands of percent overnight creates an unsustainable tax burden for long-time upland residents and transitional properties. To survive the financial shock, they are forced to sell out or actively convert their eco-sensitive lands into intense, high-yield commercial tourism ventures and concrete developments.
Without targeted tax credits for environmental preservation, the city’s tax code will transform from a tool of revenue generation into a primary driver of upland urban sprawl and watershed degradation.
4. Turning a Cost Schedule into a Density Tax
The adjustments to the Schedule of Base Unit Construction Cost (SBUCC) display the exact same revenue-driven philosophy. Over the last 23 years, cumulative inflation trends in the Philippines justify a standard 2.1x to 2.4x increase in baseline construction material inputs.
While horizontal residential structures reasonably mirror this trend,high-density vertical condominiums face a jaw-dropping increase of 558% to 577% (surging up to PhP65,000/sqm for Category V-A).
The city is no longer using the SBUCC as a conservative structural replacement-cost index. Instead, it is factoring in the investment yield and vertical productivity of the real estate market. An inflated SBUCC that ignores real-world economic depreciation risks turning into a punitive penalty on urban modernization, driving up rental costs and business overhead across the board.
The Path Forward: Revenue with Equity
Modernizing Cebu City’s revenue system is necessary and long overdue to protect our local economy from predatory land hoarding. However, fiscal progress must not be achieved by executing a de facto repeal of taxpayer protections.
To ensure a balanced, lawful, and socially sustainable transition under RPVARA, the City Council and the Bureau of Local Government Finance (BLGF) must adopt structural safeguards:
Codify Actual Use Discount Factors: Pass an explicit ordinance protecting frontage and proximity-split lots, ensuring that properties continuing low-density residential, institutional, or industrial operations are insulated from speculative commercial benchmarks.
Establish Protected Subclasses: Introduce distinct categories for “Residential Frontage” and “Eco-Sensitive Upland Reserves” to shield vital watersheds and middle-income families from aggressive land capitalization.
The Immediate Shield (The 6% Cap): For the first year of implementation, the city must implement a strict 6% cap on the total tax due compared to the previous year. This acts as an immediate safety valve for family checkbooks, ensuring that no matter how high the land’s theoretical value has risen, the actual cash leaving the taxpayer’s pocket remains manageable.
The Structural Step-Up (The 3-to-5-Year Phase-in): While the true market value is locked into the city’s database from day one to keep speculators at bay, the actual taxable baseline should be phased in gradually over three to five years ( 40\% in Year 1, }70\% in Year 2, and 100\% in Year 3).
Phase in Collection over 3-to-5 Years: Implement a gradual, step-up percentage layout to prevent a sudden economic shock from destabilizing the local housing market and displacing vulnerable populations.
Taxation must remain uniform, equitable, and progressive. If Cebu City allows its property assessment system to prioritize revenue maximization over structural fairness, it will score a temporary fiscal victory at the absolute cost of public confidence, environmental safety, and constitutional due process. It’s time for our policymakers to look past the valuation maps and protect the actual use of the people.
The withdrawal of SM Prime Holdings from the proposed public market redevelopment in Baguio City has often been framed as a failed deal or a breakdown in negotiations. In truth, it offers a far more instructive lesson—one rooted in contract law, urban planning, and the statutory nature of public markets. It shows how freedom of contract, when confronted with planning policy and public welfare, is legally designed to yield.
At the center of this lesson is Article 1306 of the Civil Code, which enshrines freedom of contract but only within firm boundaries. Parties may stipulate as they see fit, but only so long as their agreements are not contrary to law, morals, good customs, public order, or public policy. This conditional structure matters greatly in contracts that affect public interest. Public market redevelopment is one such contract.
Public markets are not ordinary commercial properties. Under Section 17(b)(2)(viii) of the Local Government Code (RA 7160), public markets are expressly classified as basic services, on the same statutory footing as health and welfare facilities. This classification is decisive. Once an activity is defined as a basic service, it cannot be governed solely by profit logic or treated like a private mall. The law itself embeds a social function into the space.
The Local Government Code reinforces this social character through the general welfare clause in Section 16, which authorizes local governments to exercise police power to promote public welfare, social justice, and economic stability. This power includes regulating stall rentals, fees, access, and conditions of use in public markets—even when a private entity is involved through a public–private partnership. Sections 147 and 151 further authorize LGUs to impose reasonable fees and charges, a standard that is explicitly normative, not market-driven. Reasonableness is measured against livelihood capacity and public welfare, not revenue maximization.
When these statutory provisions are read together with Article 1306, the legal architecture becomes clear. Freedom of contract exists, but only within a planning and policy framework already defined by law. Contracts governing public markets are therefore not insulated private arrangements. They are subordinate to public policy as articulated in statutes, urban plans, and zoning ordinances.
In Baguio’s case, the public market has long functioned as a livelihood hub and cultural anchor. Planning objectives—affordability, protection of long-time vendors, and preservation of the market’s public character—were not incidental concerns raised late in the process. They are inherent in how the space is planned and governed. Once these planning constraints were asserted, the scope of permissible contractual discretion narrowed, exactly as Article 1306 anticipates.
From a legal standpoint, SM Prime’s withdrawal was not a failure of freedom of contract. It was a recognition of its limits. Article 1306 does not guarantee that a contract affecting public interest will remain commercially viable under all conditions. It guarantees only that parties may contract subject to existing and continuing public policy constraints. When those constraints—rooted in the Local Government Code and the city’s planning framework—made mall-type economics incompatible with the social function of the public market, withdrawal became the lawful and rational outcome.
This dynamic carries important implications for other cities contemplating similar redevelopments. In places like Cebu, where public markets are likewise embedded in CLUPs and governed by zoning ordinances, contracts cannot be used to bypass planning intent or displace intended beneficiaries through pricing and access mechanisms. Article 1306 ensures that contractual autonomy remains a tool for implementing urban policy, not a mechanism for undoing it.
Ultimately, the Baguio market episode affirms a principle that is often overlooked in infrastructure and redevelopment debates: not all urban spaces are meant to behave like malls. Public markets are planned spaces with statutory social functions. When private contracts collide with those functions, the law does not bend planning to contract. It bends contract to the plan. That is not an aberration in the legal system—it is the system working exactly as designed.
In this sense, the Baguio case demonstrates that Article 1306 does not guarantee the profitability or finality of a public-market contract. What it guarantees is a framework within which private agreement must remain aligned with law and public policy. When alignment becomes impossible—when the commercial model required by the private party cannot coexist with the social function of the public market—the legally correct outcome is not coercive enforcement, but withdrawal.
This dynamic is precisely why the Baguio withdrawal is instructive for other public market projects. It shows that contracts over public markets survive only if contractual autonomy serves, rather than defeats, livelihood, equity, and the common good. Article 1306 does not compel private parties to stay in such contracts at all costs; it simply ensures that they cannot insist on terms that override public policy. Where those terms are essential to the private party’s participation, exit becomes the lawful and rational option.
Seen this way, the Baguio market episode is not an anomaly. It is a practical manifestation of Article 1306’s deeper logic: freedom of contract exists, but in public-interest settings, it yields to social regulation—and when that yield is too great for commercial viability, withdrawal is the system working as designed, not failing.
How CLUPs and Zoning Ordinances Set the Real Limits of Freedom of Contract
Urban planning gives concrete institutional form to the limits that Article 1306 places on contractual autonomy, and this is most clearly expressed through the Comprehensive Land Use Plan (CLUP) and the Zoning Ordinance. These planning instruments are not merely technical documents; they are the local government’s formal articulation of public policy in space. When a contract concerns land or facilities governed by an approved CLUP and zoning ordinance, the contract does not operate above these instruments—it operates within them.
Under Philippine planning law and practice, the CLUP establishes the intended social, economic, and spatial function of land. Zoning then translates that intent into binding regulatory controls on use, intensity, and character of development. When a public market is designated in the CLUP as a civic, institutional, or special commercial use—particularly one oriented toward livelihood and public service—that designation carries legal consequences. It signals that the area is not meant to function as a purely market-driven commercial zone akin to a mall district. Instead, it is planned as livelihood infrastructure, embedded in the city’s social economy.
This is where Article 1306 and planning law converge. Article 1306 allows parties to stipulate freely, but only so long as those stipulations are not contrary to law or public policy. In the urban planning context, the CLUP and zoning ordinance are the most authoritative local expressions of public policy. A redevelopment contract that effectively transforms a public market—planned and zoned as a socially oriented urban facility—into a space governed by mall-type economics may comply with the text of the contract, yet still conflict with the CLUP’s planning intent. When that happens, Article 1306 ceases to protect contractual discretion and instead becomes the legal basis for regulation, recalibration, or even non-continuance of the agreement.
The Baguio public market episode illustrates this clearly. While the proposed contract with SM Prime Holdings may have been commercially sound, it ran into a planning reality grounded in Baguio City’s land-use objectives. The public market’s role in the city’s CLUP—as a livelihood hub, cultural space, and civic anchor—meant that zoning and planning policies necessarily imposed limits on rental structures, vendor displacement, and land-use intensity. Once the city asserted these planning constraints, the contract could no longer be treated as a purely private commercial arrangement. Under Article 1306, stipulations inconsistent with those planning objectives lost their normative force.
From an urban planning standpoint, this outcome is not accidental; it is structural. CLUP and zoning compliance function as ex ante filters on what kinds of contracts are viable in particular locations. They ensure that cities do not contract away their planning mandate through long-term agreements that lock in spatial outcomes contrary to adopted plans. Article 1306 provides the legal bridge that makes this possible by subordinating contractual freedom to public policy as expressed through planning instruments.
This has important implications for other cities contemplating public market redevelopment, including Cebu City. If the CLUP and zoning ordinance characterize Carbon Market as a public market, special commercial zone, or civic space with explicit livelihood and social functions, then any PPP or joint venture must be interpreted—and if necessary, regulated—through that planning lens. Contracts cannot be used to bypass zoning intent, intensify commercial use beyond what the CLUP envisions, or displace intended beneficiaries without violating public policy. When conflicts arise, Article 1306 does not protect the contract; it protects the plan.
In this sense, CLUP and zoning compliance are not secondary considerations that follow contract execution. They are preconditions that define the legal environment in which contracts operate. The Baguio withdrawal shows that when planning objectives are clear and consistently enforced, private parties make rational decisions: they either adapt their contractual expectations to the plan or withdraw. Both outcomes preserve the integrity of the planning system.
Ultimately, the lesson for urban governance is clear. Planning leads; contracts follow. Article 1306 ensures that freedom of contract remains a tool for implementing the CLUP, not a mechanism for undoing it. When cities take their planning instruments seriously, contractual autonomy aligns with urban policy—or yields to it.
In today’s volatile property market, even fully leased buildings can face uncertainty when interest rates rise and yields compress. One of our clients is a developer with a 30-storey, 76-unit office tower in Bonifacio Global City. They sought clarity on whether their investment was still performing as expected. Through econometric analysis, we transformed complex market data into actions. This gave them financial insight that helped them see beyond occupancy rates. They focus on true value, risk, and return.
The Client’s Challenge
A private developer approached our team with a critical question:
“Is our 30-storey, 76-unit office building in Bonifacio Global City still financially viable under current market conditions?”
The client had completed construction two years earlier. The building was fully leased. They were concerned about rising interest rates. Modest rental escalations are eroding investment returns.
The property’s leasing structure appeared competitive. It includes a mix of bare-shell and fitted office units. These units range from PhP1,500 to PhP1,800 per sqm per month. However, management wanted to know if the building’s cash flows truly reflected its economic value. They questioned whether adjustments in pricing, escalation, or capital structure were necessary.
In short, the challenge was not occupancy — it was understanding profitability in a tightening capital market.
Our Approach
Instead of relying on conventional yield assumptions, our team applied econometric modeling. This is an analytical framework that links property-level performance to measurable macroeconomic drivers.
We began by reconstructing the building’s income statement. We also reconstructed rental schedules across 76 office units and all 30 floors. We factored in current lease terms and 3% annual escalations. Additionally, we used observed market data from Pinnacle Real Estate Consulting and Arcadis Philippines.
From there, we derived two distinct discount rates using both finance-based and property-specific risk models:
Method
Formula
Result
Finance-Based (CAPM)
R=Rf+β(ERP)+SRP
17.40%
Real Estate Build-Up
R=Rf+∑RiskPremiums
13.16%
Each parameter was anchored to empirical data. This includes the risk-free rate, beta, and risk premiums. These were tied to data from the Bangko Sentral ng Pilipinas, PSA inflation series, and Damodaran’s country risk tables.
By integrating these variables, we aligned the building’s valuation with economic reality rather than static, one-size-fits-all assumptions.
Findings: Translating Data into Decision
Our projection model covered a 10-year period, reflecting the economic life of the building’s interior improvements.
Discount Rate
Present Value of Cash Flows (PhP)
Fit-out & Equipment Cost (PhP)
NPV (PhP)
Interpretation
13.16%
11,801,358
12,472,358
–671,000
Breakeven (stabilized scenario)
17.40%
10,655,646
12,472,358
–1,816,000
Slightly negative (equity scenario)
Despite the modest NPV results, the cash inflows were sufficient to recover the capital outlay within the project’s economic life. This indicated a financially balanced asset — not speculative, but self-sustaining and capital-preserving.
The key insight for the client was that profitability was not being lost. It was simply redefined by changing macroeconomic conditions. In other words, the property’s yield had adjusted to reflect a maturing market.
We extended the analysis to examine how the project would perform under various economic shocks:
A 1% increase in the discount rate (e.g., due to rising interest rates) would reduce the property’s value by approximately PhP700,000.
A 1% increase in rental escalation would improve valuation by about PhP500,000.
This confirmed that interest-rate and capital-market movements have a greater effect on value than marginal rental adjustments.
The adopted PhP1,800 per sqm rate for fitted offices is advantageous. It places the property squarely within the prime BGC rental range of PhP1,400–PhP1,900. The effective yield is 7–8% per annum. This is a level consistent with institutional benchmarks in Metro Manila’s investment-grade office sector.
The results of the econometric analysis allowed the client to make well-informed and financially sound decisions. Our findings confirmed the current rental rate structure of PHP 1,500 to PHP 1,800 per square meter per month. This rate was aligned with prevailing market conditions. These rates match the conditions in Bonifacio Global City. Attempting to increase the rates further would risk higher tenant turnover without producing a proportional increase in building value. Hence, the most strategic course was to maintain existing rents, ensuring consistent occupancy and stable revenue streams.
Second, the study validated the client’s 3% annual escalation policy. It demonstrated that this policy accurately reflected the average inflation rate. It also matched the standard lease renewal adjustments in the area. This approach ensured that income growth would remain sustainable and competitive, balancing tenant affordability with long-term asset performance.
Finally, we advised the client to reclassify the building’s investment profile—from a short-term growth-driven asset to a core income property. This repositioning recognized that the building had already reached stabilization, with 100% occupancy and predictable cash inflows. The property could now serve as a capital preservation anchor within the client’s portfolio. It would provide reliable income to offset higher-risk, higher-yield developments elsewhere.
What initially seemed like a modest or even negative Net Present Value (NPV) was reinterpreted. It became a measure of financial efficiency. The building’s inflows matched its cost of capital. This indicated that it was performing exactly as expected in a mature market like BGC. Through this shift in perspective, the client gained a clearer understanding of the property’s value. The client also gained a more strategic framework for portfolio management, anchored in data, discipline, and economic logic.
This case highlights how econometric reasoning transforms real estate valuation from a static appraisal into a dynamic decision-making tool. We treated rents, yields, and escalation rates as variables linked to broader economic conditions. This approach helped us uncover not just the property’s value but also the logic behind it. The client learned that a neutral or breakeven NPV is not necessarily a weakness. It can signify equilibrium and maturity in a market. In this market, stability is the new form of strength.
For investors, the key takeaway is that macro-driven valuation brings clarity in times of uncertainty. Understanding how discount rates move with monetary policy provides a sharper sense of timing. Recognizing how escalation aligns with inflation sharpens your understanding of risk and opportunity. For developers, the lesson is strategic. Once a building reaches full occupancy and stable returns, it should be viewed as a core income asset. This asset anchors the portfolio and preserves capital rather than being seen as a speculative venture.
Ultimately, the study demonstrates that data and discipline lead to confidence. In Bonifacio Global City, every percentage point of yield and risk can mean millions in value. Econometric analysis offers a distinct advantage. It gives clients the ability to move beyond intuition. Consultants can also ground their investment strategies on measurable, defensible evidence.
By: AB Agosto, JD, REA, REB, REC, MA Economics (University of San Carlos) Paralegal – Real Estate, Environmental & Corporate Law
In the meticulous world of real estate appraisal, one principle stands above all others: you cannot value what you cannot identify correctly. Whether working on a condominium in Makati, a farmland in Bukidnon, or a contested estate in Cebu, the first and most sacred duty of any appraiser is to accurately and defensibly identify the subject property. This is not just a technical requirement—it is the foundation of credibility, legality, and fairness in valuation. A mistake in property identification is not a small error. It invalidates every step that follows: the market comparison, highest and best use analysis, risk assessment, and final value estimate. Simply put, wrong property means wrong valuation.
Property identification involves several components. It means correctly determining the legal identity of the land—via Transfer Certificate of Title (TCT), technical description, and lot number. It also means identifying the actual physical location and ensuring it matches the documents, zoning classification, and any physical improvements or encumbrances. Every valuation method—whether it’s the market approach, cost approach, or income approach—relies on this first step. If you appraise the wrong lot, all your calculations, assumptions, and conclusions become legally and factually meaningless.
This is why misidentification carries not only technical consequences but also legal and ethical ones. A wrong appraisal can lead to court rejection of the report, denial of loans by banks, and even legal liability for misleading courts or clients. Under Article 19 of the Civil Code of the Philippines, professionals have a duty to act with justice, give everyone their due, and observe honesty and good faith. The Philippine Valuation Standards likewise emphasize that appraisers must exercise due diligence and care—beginning with accurate property identification.
Some of the most common pitfalls in this process include relying solely on the owner’s verbal claim without matching it against documentary evidence, misplotting technical descriptions, failing to check for easements or encroachments, and confusing adjacent lots with similar features. These errors are preventable with a disciplined and documented approach. A responsible appraiser will cross-check TCT data with the tax map and zoning ordinance, conduct field validation through site visits, use geotagged photos or drones, and even consult barangay officials or boundary markers when in doubt.
The risks of inaccuracy are very real. Imagine an appraiser tasked to value Lot 6 but instead inspects and reports on Lot 5. If Lot 5 is under threat of expropriation or prone to flooding, while Lot 6 is not, the valuation will be drastically wrong. In judicial proceedings, such a mistake may result in an unjust award of compensation or legal challenge. In lending, it may lead to defective collateralization. The appraiser’s name—and the integrity of the profession—are on the line.
I always emphasize that property identification is not just a preliminary step—it is the moral compass of professional practice. It sets the tone for the accuracy, fairness, and trustworthiness of the entire report. Real estate is a high-stakes industry. The margin for error is slim, and the cost of error is great. That is why we say: Property identification is sacred. Wrong property is wrong valuation. Always.
The Bureau of Local Government Finance (BLGF), a key agency responsible for overseeing local government revenue collection and fiscal policies, recently invited Gus Agosto, the President of the Society of Litigation Valuation Experts (SOLVE), to participate in a significant event aimed at shaping the future of property valuation in the Philippines. This event was the Workshop for the Implementing Rules and Regulations (IRR) of the Real Property Valuation and Reassessment Act (RPVRA), held from August 20 to 23, 2024 at Dusit Thani in Lapu-Lapu City, Cebu.
The workshop’s primary objective was to finalize the Implementing Rules and Regulations (IRR) for the RPVRA, a groundbreaking piece of legislation aimed at reforming real estate property valuation practices across the country. The RPVRA’s provisions are geared toward:
Standardizing real property valuation across Local Government Units (LGUs),
Strengthening the efficiency of property tax collection,
Enhancing transparency in government-led real estate transactions,
Establishing a National Valuation Database.
Given the far-reaching implications of the RPVRA, this workshop was crucial for ensuring that the IRR accurately reflected the spirit of the law while considering the practical realities of its implementation.
Prof. Gus Agosto, representing Group 1 in the discussions, played a central role in examining and debating key provisions of the RPVRA, particularly those affecting litigation-related valuation issues. His expertise as the President of SOLVE, an organization specializing in property valuation in legal disputes, added valuable insights into the drafting process. Group 1 likely focused on technical aspects of valuation practices, dispute resolution, and how to ensure the law’s provisions are consistently applied across regions.
His participation underscored the importance of collaboration between government bodies, private sector experts, and organizations such as SOLVE, as they worked to ensure that the IRR would be both legally sound and implementable at the local level.
The workshop was attended by a diverse group of stakeholders from the Visayas and Mindanao regions, representing both the public and private sectors:
Government Agencies:
Bureau of Local Government Finance (BLGF): Ensures local government revenue collection aligns with new valuation standards.
Bureau of Internal Revenue (BIR): Guides interactions of RPVRA with tax administration.
Philippine Tax Academy: Supports training for assessors and tax officers.
Local Government Assessors: Implement new valuation standards at local levels.
Phividec Industrial Authority: Focuses on how the new valuation law affects industrial property valuations.
Private Sector:
Real estate practitioners, property developers, and valuation experts shared insights on the law’s impact on real estate and investments.
During the workshop, various provisions of the RPVRA were debated, including:
Valuation Standards:
Ensuring uniformity in real property valuation across all LGUs, addressing long-standing issues with inconsistent property assessments in different regions.
Creation of the National Valuation Database:
Discussing the technical requirements, privacy concerns, and the operational framework of the database, which would be central to transparent and reliable valuation practices.
Periodic Revaluation Requirements:
The IRR’s requirement for LGUs to conduct regular updates to property valuations would address the issue of outdated valuations that impact fair taxation and public transactions.
Appraisers’ and Assessors’ Qualifications:
Emphasis was placed on professionalizing the appraisal practice through standardized training and certification programs, with contributions from the Philippine Tax Academy.
Litigation-Related Provisions: Mr. Agosto’s involvement focused on mechanisms for resolving valuation disputes, particularly in cases of eminent domain, where the government acquires private property for public use, and determining just compensation becomes critical.
The workshop was pivotal for finalizing the IRR, which would serve as the guiding document for the implementation of the RPVRA across the country. This collaborative effort between the government and the private sector aims to ensure that real estate valuation practices in the Philippines align with international standards, promote transparency, and support the fair and equitable taxation of real properties.
The participation of key government bodies such as the BIR and the BLGF, alongside valuation experts like Gus Agosto, ensures that the IRR addresses both the technical and practical aspects of real estate property valuation, enhancing the law’s chances of being effectively implemented across the country’s LGUs.
Real LexEcon 